The rsync.net platform is based on the state of the art ZFS filesystem.
One feature of this ZFS platform is our ability to create and maintain "snapshots" of your entire cloud storage account.
This means that in addition to your cloud storage account, there are additional FULL COPIES of your entire account - as it existed on those dates in the past. You are not charged for these snapshots and they do not count against your quota.
You can browse through your account as it existed (for instance) four days ago. Or two weeks ago. You can restore a file (or the entire backup) as it existed at any of these points in the past. If this sounds like "Time Machine" on Apple's OSX, that's because the technology is very similar.
Safety and Security
All accounts have seven daily snapshots. Accounts larger than 1TB have seven daily and four weekly snapshots.
Further, ANY account can have a custom schedule defined and only the space that is used by the additional snapshots is counted against your quota. For instance: a customer with a 4TB account could request a schedule of 10 dailies and 6 weeklies. Only the space used by the additional 3 dailies, and 2 weeklies would count against their quota.
Because the ZFS filesystem stores a snapshot using only the changed bits since the current backup, extra snapshots are usually quite small - not anywhere near the space required to store another copy of your data.
Finally, the snapshots are read-only and cannot be altered in any way by your user account. This provides insurance against a malicious party ever accessing your account - they could alter the current dataset, but none of the snapshots.
You do not need to set up these snapshots, nor do you need to maintain them - they are automatically created and rotated.
This means that you can do a "dumb" mirror, or 1:1 backup to rsync.net and not worry about historical copies or "daily vs. full" backups. It also means that if you are using rsnapshot or "rsync snapshots" (with hard links) you can remove those components and just do a simple rsync to us.
If you have any questions or problems regarding this process, please email email@example.com - we will help you immediately.
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